Digital marketing is the process of building and maintaining customer relationships through online activities to facilitate the exchange of ideas, products, and services between two parties. The goal is to generate sales or capture leads from customers searching online. Key components of digital marketing include website design, search engine optimization, social media marketing, email marketing, and content marketing. Digital marketing provides benefits like increased customer satisfaction, brand loyalty, and measurable results at a lower cost compared to traditional marketing. Common types of digital marketing are search engine optimization, pay-per-click advertising, social media, online advertising, and email marketing.